To develop a new mouse model of underactive bladder (UAB) caused by chronic bladder outlet obstruction (BOO).
BOO was created in 6-week-old male C57BL/6 mice using surgery to loosely place a silver jump ring around the bladder neck of each mouse. Micturition behavior (assessed with a metabolic cage) and cystometry were used to evaluate bladder function at 8 and 16?weeks after BOO. Following completion of the functional studies, the bladders of the mice were excised, weighed, and subjected to histological analysis.
Micturition behavior analysis showed that mice subjected to BOO for 16?weeks had a lower frequency of micturition (7.3?±?1.1 vs 12.5?±?3.0 times/d, P?&lt;?.05) and volume per void (106.0?±?0.1 vs 133.9?±?3.2?μL, P?&lt;?.05) than mice subjected to BOO for 8?weeks. Cystometry revealed that mice subjected to BOO for 16?weeks had lower baseline pressure (8.4?±?0.6 vs 14.0?±?0.7 cmHO, P?&lt;?.01) and micturition pressure (13.9?±?1.1 vs 42.8?±?1.7 cmHO, P?&lt;?.05) than mice subjected to BOO for 8?weeks. BOO caused progressive increases in bladder mass and collagen deposition over time.
We successfully established a novel mouse model of UAB using surgery to place a silver jump ring loosely on the bladder neck. BOO initially induced bladder overactivity but subsequently resulted in UAB due to deterioration of detrusor smooth muscle contractility and progressive deposition of collagen in the bladder wall.
We successfully established a novel mouse model of UAB using surgery to place a silver jump ring loosely on the bladder neck. BOO initially induced bladder overactivity but subsequently resulted in UAB due to deterioration of detrusor smooth muscle contractility and progressive deposition of collagen in the bladder wall.This study aims to investigate the prevalence of voiding disorders and identify the associated risk factors for school-age children in East Anatolia, Turkey.
We randomly selected six primary schools in Malatya in East Anatolia, and 907 students from 6 to 14?years old were involved. Data were obtained using the dysfunctional voiding and incontinence scoring system (DVISS) scale, and children who scored 8.5 or above on that scale were considered as having voiding disorders.
Voiding disorders were detected in 175 (19.2%) of 907 children. One hundred and fifty-two (16.8%) had day-time urinary incontinence, and 131 (14.5%) had night-time incontinence. The findings showed a significant relationship between voiding disorder and daytime/night-time incontinence, and fecal incontinence. Voiding disorders decreased as the age increased. There was a significant relationship between voiding disorder and positive family history, and the quality of life of these children was significantly affected.
Voiding disorder is a common disease among school-age children. By identifying and treating voiding disorders and related risk factors in children in the early period, these children can be protected from possible medical or social complications.
Voiding disorder is a common disease among school-age children. By identifying and treating voiding disorders and related risk factors in children in the early period, these children can be protected from possible medical or social complications.The risk of ischemic stroke is increased among people living with syphilis infection; however, whether syphilis is an independently risk for stenosis is unclear. We investigated the clinical, laboratory, and vascular stenosis features of ischemic stroke patients living with positive syphilis serology to evaluate the role of syphilis in cerebral artery stenosis.
The demographic, clinical characteristics, and the distribution of cerebral artery stenosis were compared between 668 syphilis-positive and 785 syphilis-negative ischemic stroke patients. Multivariate logistic regression analysis was performed to determine the degree and distribution of stenosis associated with positive syphilis serology and estimate the factors related to artery stenosis in the syphilis-positive ischemic stroke patients.
Syphilis-positive ischemic stroke patients were distinct from the nonsyphilis population, with a younger age, fewer women, and a different risk factor profile. Positive syphilis serology was independently associated with moderate stenosis (OR, 2.31; 95% CI 2.02-2.69; p=.003) and severe stenosis (OR, 6.15; 95% CI, 2.85-8.94; p&lt;.001), mainly intracranial stenosis (OR, 1.49; 95% CI, 1.15-1.92; p=.002) rather than extracranial stenosis. Among stroke patients with positive syphilis serology, the higher RPR titer (OR, 1.18, 95% CI, 1.07-1.89 for RPR titer 116; OR, 5.16, 95% CI 2.99-8.89 for RPR titer&gt;132) and previous unknown or untreated syphilis (OR, 3.63; 95% CI, 2.72-4.03; p&lt;.001) were the factors related to stenosis.
Syphilis infection, especially when less well controlled, may play an important role in intracranial stenosis of ischemic stroke patients.
Syphilis infection, especially when less well controlled, may play an important role in intracranial stenosis of ischemic stroke patients.The use of resorbable devices for osteosynthesis has become a subject of interest. Nacre has been proposed as a resorbable and osteoconductive material favoring bone apposition without triggering an inflammatory reaction. We compared the in vivo osseointegration and erosion of nacre screws in an animal model with titanium screws. Implantation of similar nacre and titanium screws was performed in the femoral condyles of adult rats. https://www.selleckchem.com/products/LBH-589.html Animals (n = 41) were randomized in four groups sacrificed at day one, 1, 6, and 12?months. Microcomputed tomography (microCT) allowed 3D morphometry of erosion of nacre. Osseointegration was measured as the volume of trabecular bone bone volume/tissue volume (BV/TV) in a standardized volume of interest around each screw. Undecalcified bone histology was also done. Gross examination revealed a similar clinical osseointegration for titanium and nacre screws. A progressive erosion of nacre screws, but no erosion of titanium screws, was observed in microCT. The volume of nacre screws progressively decreased over time whereas no modification occurred for titanium.